Intel 430HX

The Intel 430HX (codenamed Triton II) is a chipset from Intel, supporting Socket 7 processors, including the Pentium and Pentium MMX. It is also known as i430HX and it was released in February 1996. The official part number is 82430HX.

Intel 430HX

Codename(s)	Triton II
CPU supported	Pentium Pentium MMX Cyrix 6x86 AMD K5 AMD K6
Socket supported	Socket 7
Southbridge(s)	Intel PIIX3
Miscellaneous
Release date(s)	February 1996
Predecessor	Intel 430FX
Successor	Intel 430VX Intel 430TX

Features

The 430HX chipset had all the features of the 430FX (Triton I) plus support for ECC, parity RAM, two-way SMP, USB, and then current PCI to improve speed.

It consists of one 82439HX TXC, the northbridge and one PIIX3, the southbridge. The 430HX chipset supported up to 512MB of RAM (64MB or 512MB cacheable depending on tag RAM size).

Gallery

• 
  Intel FW82439HX PCIset System Controller (TXC)

Limitations

Not all 430HX boards allowed for tag RAM expansion, only allowing 64MB cacheable; 430HX also did not support the then-new SDRAM memory technology. Dual-voltage support, for Pentium MMX or AMD K6 CPUs, was also not mandatory on 430HX boards, requiring the use of an interposer to step down the voltage.

See also

• List of Intel chipsets

References

• Intel 430HX ("Triton II") at the Wayback Machine (archived February 3, 2002), PC Guide.
• Intel 430FX ("Triton") at the Wayback Machine (archived February 3, 2002), PC Guide.
• Summary of P5 chipsets, comp.sys.intel, September 1996.
• INTEL 430HX PCISET 82439HX SYSTEM CONTROLLER (TXC) datasheet at the Wayback Machine (archived March 5, 2016)
• Intel 82371FB (PIIX) and 82371SB (PIIX3) PCI ISA IDE Xcelerator Specification Update at the Wayback Machine (archived March 10, 2016)